Yellow Mountain Imports Digit Standard Abacus 10.5 Inches - Professional 17 Column Soroban Calculator (Functional and Educational Learning Tool)

Additional Details from the Manufacturer

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More features

• Timeless Reliability: A calculator in its classical form, the abacus/soroban features a system used before written numerals, and is still used in parts of the world by merchants, traders, and clerks
• An Ideal Montessori Math Tool: Make math practice more effective; Using an abacus as a math manipulative is a great way to teach kids how to count, equate and compute mentally
• Modern and Durable: This 17-digit professional soroban abacus is made from quality ABS plastic and measures 10.5 x 2.5 x 0.8 inches (26.7 x 6.1 x 2 centimeters)
• Great Portability: At 0.26lb (0.12kg), this abacus is made compact and handy so you or your kids can easily take it anywhere; Comes with rounded edges so your hands won't get hurt; Also, it never runs out of power!
• Arithmetic Education Must-Have: Manipulative tools such as this abacus is an important teaching supplement for your grade-schoolers' education; It can be used in teaching number concepts in remote learning or homeschooling settings; Abacuses are also a proven useful learning device for the visually impaired